You really need to read this to better understand the techniques required for Present. The service rifle changes over time to whatever the Army and Marine Corps decide to use as the primary weapon for the majority of Soldiers and Marines. For many years that has been the M16 and now the M4 is making its way into each service. For this study we will look at each current platform to include the M1 Garand, M14, and M1903 tracking the history of each, if necessary.